Chapter 3. System Features
Related Programming
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FF2: T1-CO Lines
Considerations
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The T1 Line proivdes trunk signaling modes for Loop Start, Ground Start, and E&M.
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Also see Class of Service - T1 Trunk Ring Back Service Tone on p. 3-16 for more information on
T1 Line features.
Toll Restriction Service
Description
Toll Restriction Service (TRS) allows access levels, including the prohibition of long distance calls or
after-hours calls, to be assigned to specific extensions or CO lines. This minimizes non-business
related calls and reduces phone bills by only allowing long distance calls over designated lines.
TRS can be used in conjunction with Automatic Route Selection (ARS).
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TRS classes are set on an extension and trunk basis. Up to 50 TRS classes can be assigned.
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Each TRS class is then assigned to a TRS level. This level is used as the basis for allowing or
restricting calls.
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There are 10 TRS levels available: 0 denies all calls, 1-8 may be partially restrictive per
assignments, and 9 allows all calls.
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TRS can restrict the number of digits dialed (1 to 20 digits limit or no limit).
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TRS can restrict the use of System Speed Dials (SSDs) for out dialing on a TRS class basis;
either no system speed dials or limit the range of SSDs.
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TRS can restrict the use of the star (*) or pound (#) digits on a TRS class basis.
The following calling restrictions are also available:
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Forced ARS Restriction (The ARS feature controls outside calls.)
Hardware Requirements
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N/A
Related Programming
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N/A
Considerations
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The dialing restrictions included in this feature help prevent unauthorized outgoing calls. It is
possible; however, to program your System to allow SSD to override TRS.
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For more information on ARS/TRS, see the ARS/TRS Reference Manual.
3-58
DBS 576 (USA) issued September 2001
Section 700 - Operation
576-50-700